Bianchi type-V string cosmological models in f (R, T) gravity

被引:21
作者
Rao, V. U. M. [1 ]
Rao, D. C. Papa [1 ]
机构
[1] Andhra Univ, Dept Appl Math, Visakhapatnam, Andhra Pradesh, India
关键词
f; (R; T); gravity; String models; Bianchi type-V metric; SYMMETRIC COSMIC STRINGS; BRANS-DICKE THEORY; NONEXISTENCE; VIII;
D O I
10.1007/s10509-015-2242-6
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Spatially homogeneous and anisotropic Bianchi type-V space-time is considered in the presence of cosmic strings in a modified theory of gravity proposed by Harko et al. (Phys. Rev. D 84: 024020, 2011). Solving the field equations we have presented geometric and Takabayasi strings in this theory. Some physical and kinematical properties of the models are also discussed.
引用
收藏
页码:1 / 5
页数:5
相关论文
共 26 条
[1]   MACHS PRINCIPLE AND A RELATIVISTIC THEORY OF GRAVITATION [J].
BRANS, C ;
DICKE, RH .
PHYSICAL REVIEW, 1961, 124 (03) :925-&
[2]   Is cosmic speed-up due to new gravitational physics? [J].
Carroll, SM ;
Duvvuri, V ;
Trodden, M ;
Turner, MS .
PHYSICAL REVIEW D, 2004, 70 (04)
[3]   EXACT SPATIALLY HOMOGENEOUS COSMOLOGIES [J].
COLLINS, CB ;
GLASS, EN ;
WILKINSON, DA .
GENERAL RELATIVITY AND GRAVITATION, 1980, 12 (10) :805-823
[4]   f(R, T) gravity [J].
Harko, Tiberiu ;
Lobo, Francisco S. N. ;
Nojiri, Shin'ichi ;
Odintsov, Sergei D. .
PHYSICAL REVIEW D, 2011, 84 (02)
[5]  
Kroni K.D., 1990, GEN RELAT GRAVIT, V22, P123
[6]   CLOUDS OF STRINGS IN GENERAL-RELATIVITY [J].
LETELIER, PS .
PHYSICAL REVIEW D, 1979, 20 (06) :1294-1302
[7]   STRING COSMOLOGIES [J].
LETELIER, PS .
PHYSICAL REVIEW D, 1983, 28 (10) :2414-2419
[8]   Bianchi type-V bulk viscous string cosmological model in f(R,T) gravity [J].
Naidu, R. L. ;
Reddy, D. R. K. ;
Ramprasad, T. ;
Ramana, K. V. .
ASTROPHYSICS AND SPACE SCIENCE, 2013, 348 (01) :247-252
[9]   Measurements of Ω and Λ from 42 high-redshift supernovae [J].
Perlmutter, S ;
Aldering, G ;
Goldhaber, G ;
Knop, RA ;
Nugent, P ;
Castro, PG ;
Deustua, S ;
Fabbro, S ;
Goobar, A ;
Groom, DE ;
Hook, IM ;
Kim, AG ;
Kim, MY ;
Lee, JC ;
Nunes, NJ ;
Pain, R ;
Pennypacker, CR ;
Quimby, R ;
Lidman, C ;
Ellis, RS ;
Irwin, M ;
McMahon, RG ;
Ruiz-Lapuente, P ;
Walton, N ;
Schaefer, B ;
Boyle, BJ ;
Filippenko, AV ;
Matheson, T ;
Fruchter, AS ;
Panagia, N ;
Newberg, HJM ;
Couch, WJ .
ASTROPHYSICAL JOURNAL, 1999, 517 (02) :565-586
[10]   Exact Bianchi type II, VIII and IX string cosmological models in General Relativity and self-creation theory of gravitation [J].
Rao, V. U. M. ;
Santhi, M. Vijaya ;
Vinutha, T. .
ASTROPHYSICS AND SPACE SCIENCE, 2008, 317 (1-2) :83-88